Under no circumstances ____betray our friends for personal benefit.A did we B we shouldC should we D we could为什么?

Question

Under no circumstances ____betray our friends for personal benefit.
A did we B we should
C should we D we could
为什么?

Answer 1

Under no circumstances ____betray our friends for personal benefit.
选C should we
Under no circumstances 要求倒装
A 用的是虚拟,故不选
也就是说,当句首状语为否定词或带有否定意义的词语时,采用部分倒装.更多的例子有：never,little,often,not only,not until,hardly,scarcely,seldom,no sooner ...than …,in no way,at no time,under no circumstances,by no means,in no case.,.
例句：
Little does he care about money.他很少关心钱.
Not until recently did I know what he had done.直到最近我才知道他所做的事.